diff --git a/app/models/bookedAppointment.ts b/app/models/bookedAppointment.ts
index f517452..59bd7de 100644
--- a/app/models/bookedAppointment.ts
+++ b/app/models/bookedAppointment.ts
@@ -19,7 +19,6 @@ export interface BookedAppointment extends mongoose.Document {
 
 const bookedAppointmentsSchema = new mongoose.Schema(
   {
-    _id: { type: mongoose.Schema.Types.ObjectId, required: true },
     date: { type: Date, required: true },
     timing: { type: String, required: false },
     state: { type: String, required: true },
diff --git a/app/models/commonDisease.ts b/app/models/commonDisease.ts
index af885a3..3c25b6a 100644
--- a/app/models/commonDisease.ts
+++ b/app/models/commonDisease.ts
@@ -6,7 +6,6 @@ export interface CommonDiseases extends mongoose.Document {
 
 const diseaseSchema = new mongoose.Schema(
   {
-    _id: { type: mongoose.Schema.Types.ObjectId, required: true },
     commonDiseases: [String],
   },
   {
diff --git a/app/models/doctor.ts b/app/models/doctor.ts
index a11820d..7222dda 100644
--- a/app/models/doctor.ts
+++ b/app/models/doctor.ts
@@ -36,7 +36,6 @@ const addressSchema = new mongoose.Schema({
 
 const doctorSchema = new mongoose.Schema(
   {
-    _id: { type: mongoose.Schema.Types.ObjectId, required: true },
     firstname: {
       type: String,
       required: true,
diff --git a/app/models/hospital.ts b/app/models/hospital.ts
index 6c2a05e..69c0c55 100644
--- a/app/models/hospital.ts
+++ b/app/models/hospital.ts
@@ -27,7 +27,6 @@ export interface Hospital extends mongoose.Document {
 
 const hospitalSchema = new mongoose.Schema(
   {
-    _id: { type: mongoose.Schema.Types.ObjectId, required: true },
     firstname: {
       type: String,
       required: true,
diff --git a/app/models/medicalHistory.ts b/app/models/medicalHistory.ts
index 9236510..76f5bc6 100644
--- a/app/models/medicalHistory.ts
+++ b/app/models/medicalHistory.ts
@@ -12,7 +12,6 @@ export interface MedicalHistory extends mongoose.Document {
 
 const medicalHistorySchema = new mongoose.Schema(
   {
-    _id: { type: mongoose.Schema.Types.ObjectId, required: true },
     hospital: {
       type: mongoose.Schema.Types.ObjectId,
       ref: "Hospital",